Source : Webster's Revised Unabridged Dictionary (1913)

Brigandine \Brig"an*dine\, n. [F. brigandine (cf. It.
   brigantina), fr. OF. brigant. See {Brigand}.]
   A coast of armor for the body, consisting of scales or
   plates, sometimes overlapping each other, generally of metal,
   and sewed to linen or other material. It was worn in the
   Middle Ages. [Written also {brigantine}.] --Jer. xlvi. 4.

         Then put on all thy gorgeous arms, thy helmet, And
         brigandine of brass.                     --Milton.

Source : WordNet®

brigandine
     n : a medieval coat of chain mail consisting of metal rings sewn
         onto leather or cloth